Heat Transfer If heat transfer rate varies with the time, it is termed as Steady state conduction None of these Forced convection Monochromatic radiation Steady state conduction None of these Forced convection Monochromatic radiation ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer In Joule's experiment, an insulated container contains 20 kg of water initially at 25°C. It is stirred by an agitator, which is made to turn by a slowly falling body weighing 40 kg through a height of 4 m. The process is repeated 500 times. The acceleration due to gravity is 9.8 ms⁻². Neglecting the heat capacity of agitator, the temperature of water (in °C) is 34.4 40.5 26.8 25 34.4 40.5 26.8 25 ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Multipass heat exchangers are used Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load Because of simplicity of fabrication To obtain higher heat transfer co-efficient and shorter tube To reduce the pressure drop For low heat load ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Which of the following has the minimum absorptivity? Coal dust Refractory bricks Iron plates Aluminium foil Coal dust Refractory bricks Iron plates Aluminium foil ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The dimensionless group in mass transfer that is equivalent to Prandtl number in heat transfer is Stanton number Schmidt number Sherwood number Nusselt number Stanton number Schmidt number Sherwood number Nusselt number ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer For a given ambient air temperature with increase in the thickness of insulation of a hot cylinderical pipe, the rate of heat loss from the surface would First increase and then decrease Decrease Increase First decrease and then increase First increase and then decrease Decrease Increase First decrease and then increase ANSWER DOWNLOAD EXAMIANS APP
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